Menendez has latched onto Hugin's time as CEO of Celgene, a $13 billion pharmaceutical company based in Union County, N.J., by airing commercials vilifying the company and Hugin for raising prices for cancer medications while taking home a hefty paycheck.

Hugin has fired back, attacking Menendez for accepting campaign contributions from Big Pharma and voting on federal legislation that would raise drug prices for seniors.

STAT, a health care news organization, took a closer look at the claims made in the television ads, which have been airing in New Jersey, Philadelphia, and New York. Reporter Damien Garde concluded that some of the claims are accurate, while others are a stretch.

For example, Menendez claimed in his ad that Hugin raised the price of Revlimid, a cancer medication, three times in a year, and that he earned $48 million over 15 months. Both true, according to STAT.

Menendez also claimed that Hugin nearly halved the price of Revlimid in Russia, which is also true, according to a 2017 report by the Russian Federal Antimonopoly Service that said the government had asked manufacturers to reduce prices.